Reporting print usage

extensions/firefox/content/PdfJsTelemetry-addon.jsm

@@ -32,6 +32,7 @@ Telemetry.registerAddonHistogram(ADDON_ID, "PDF_VIEWER_DOCUMENT_VERSION", 1, 10,
 Telemetry.registerAddonHistogram(ADDON_ID, "PDF_VIEWER_DOCUMENT_GENERATOR", 1, 25, 26, Telemetry.HISTOGRAM_LINEAR);
 Telemetry.registerAddonHistogram(ADDON_ID, "PDF_VIEWER_DOCUMENT_SIZE_KB", 2, 64 * 1024, 20, Telemetry.HISTOGRAM_EXPONENTIAL);
 Telemetry.registerAddonHistogram(ADDON_ID, "PDF_VIEWER_FORM", 1, 2, 3, Telemetry.HISTOGRAM_BOOLEAN);
+Telemetry.registerAddonHistogram(ADDON_ID, "PDF_VIEWER_PRINT", 1, 2, 3, Telemetry.HISTOGRAM_BOOLEAN);
 Telemetry.registerAddonHistogram(ADDON_ID, "PDF_VIEWER_STREAM_TYPES", 1, 9, 10, Telemetry.HISTOGRAM_LINEAR);
 Telemetry.registerAddonHistogram(ADDON_ID, "PDF_VIEWER_TIME_TO_VIEW_MS", 1, 10000, 50, Telemetry.HISTOGRAM_EXPONENTIAL);
 
@@ -61,6 +62,10 @@ this.PdfJsTelemetry = {
     let histogram = Telemetry.getAddonHistogram(ADDON_ID, "PDF_VIEWER_FORM");
     histogram.add(isAcroform);
   },
+  onPrint: function () {
+    let histogram = Telemetry.getAddonHistogram(ADDON_ID, "PDF_VIEWER_PRINT");
+    histogram.add(true);
+  },
   onStreamType: function (streamTypeId) {
     let histogram = Telemetry.getAddonHistogram(ADDON_ID, "PDF_VIEWER_STREAM_TYPES");
     histogram.add(streamTypeId);

extensions/firefox/content/PdfJsTelemetry.jsm

@@ -48,6 +48,10 @@ this.PdfJsTelemetry = {
     let histogram = Services.telemetry.getHistogramById("PDF_VIEWER_FORM");
     histogram.add(isAcroform);
   },
+  onPrint: function () {
+    let histogram = Services.telemetry.getHistogramById("PDF_VIEWER_PRINT");
+    histogram.add(true);
+  },
   onStreamType: function (streamTypeId) {
     let histogram = Services.telemetry.getHistogramById("PDF_VIEWER_STREAM_TYPES");
     histogram.add(streamTypeId);

extensions/firefox/content/PdfStreamConverter.jsm

@@ -401,6 +401,9 @@ ChromeActions.prototype = {
           }
         }
         break;
+      case 'print':
+        PdfJsTelemetry.onPrint();
+        break;
     }
   },
   fallback: function(args, sendResponse) {

web/viewer.js

@@ -1570,6 +1570,12 @@ var PDFView = {
     for (i = 0, ii = this.pages.length; i < ii; ++i) {
       this.pages[i].beforePrint();
     }
+
+//#if (FIREFOX || MOZCENTRAL)
+//    FirefoxCom.request('reportTelemetry', JSON.stringify({
+//      type: 'print'
+//    }));
+//#endif
   },
 
   afterPrint: function pdfViewSetupAfterPrint() {